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s. M. ANDERSQN Z AIR DISTRIBUTOR Original Filed Aug. 30, 1935 2 Sheets-Sheet l INVENTOR.4 @4M/)VEL M. 9A/@Eason ATTORNEY.

S. M. ANDERSON AIR DISTRIBUTOR Original Filed Aug. 30, 1935 2 Sheets-5h36?. 2

Patented .lune 25, 14@

Samuel Mi. Anderson @riginal 38,547,

7, 1939. ber 17,

Sturtevant application An now Patent No, 2,149,382, d

Divided alud 193%,

l Claim.

This invention relates tothe conditioning of air and relates more apparatus for the d particularly to methods and ditioned air in railway passenger cars,

This application application Serial 1s a division of According to this invention, the conditioned air discharged from a cen provided.

In one embodiment of the invention, all of the upper layers of conditioned air are deflected Sengel Space.

, Sharon, Comi?, Boston, ss.

Serial No. 240,

gust 30, 1935, Serial No. ated March lthis application Novemis to provide proper air into a passenger Other objects of the invention from the following explanation with the drawings.l

The invention will now be describ erence to the drawings of which:

Fig. 1 is a side elevation in secti bodiment of this invention;

Fig. 2 is an end view of the discharge outlets of the air conditioning unit of Fig. 1;

Fig. 3 is an enlarged side sectional view of the discharge outlets of Figs. 1 and 2;

Fig. 4 is a side elevation of of the air cond each discharge outlet;

Fig. 5 is a plan view with cover air conditioning unit of Figs. l, 2,

Fig. 6 is a side elevation "with removed of the air and Fig. 7 is a diagrammatic view showing how refrigeration may to the air condiwill be apparent taken together ed with refon of one emremoved of the 3 and 4;

the near side conditioning unit of Fig. 5;v

same discharge the same slight degree.

The lowerm osi: deector upper layers of air Ihose upper layers of into the passenger space. air nearer the downwardly -o plates 2d and inlet opening i3, without passing through the passenger space, as indicated by the arrows of Fig. 1.

The air passing between the lowermost deiector plate 2d and its adjacent plate 2d is' decreased in velocity plate with respect to the air flow.

The air deflected underneath the lowermost deiiector plate 21 provides a substantial induction eect upon the flow of streams of air projected between the various pairs of deector plates by defiecting them downwardly and causing them to be returned more quickly to the recirculated air inlet. This induction force has, of course, a greater effect upon the streams of air passing between the plate 2t and lowermost plate 2li due not only to the reduced velocity of air but also to their immediate proximity to the induction air with the result that the air projected betweenvthese plates passes but a short distance into the car and is quickly returned to the recirculated air inlet as illustrated by Fig. 1.

The streams of air passing between the pairs between the uppermost plate 25 is eiected by the induction iiowing along the deiiector plate 2l on its way to the recirculated air inlet opening 25. This eiect varies, of course, as the distance between the deilector plate 2l and the superimposed streams of projected air increases. That is to say, the induction stream of air has least effect upon the Vstream `of air projected between the uppermost plate Ztl and the wall 25 with the result that this stream of air is projected all the way to the end of the car as shown by the uppermost line of arrows indicating the air flow of Fig. l; The effect on the air projected between the adjacent pairs of plates 2li increases as the distance of the spaces between these pairs of plates from the lowermost plate 2li decreases, with the result that the air projected between the various pairs of plates M is subjected to greater and greater influence from the induction air the nearer the superimposed streams are to 2li and the wall action of the air the induction current and the streams are pro' jected different distances into the car, as shown by the arrows of Fig. 1.

The heat exchange unit shown by Figs. 5 and 6 may be employed with the embodiment of the invention illustrated by Figs. 1 to 4 inclusive. The heat exchange unit comprises the four blowby the diverging sides of each n ers ld, the two left hand ones of which project air towards one end of the car, and the two right hand ones of which project air towards the opposite end of the lated air through the recirculated air inlet opening i3. The fans may all be driven by a single electric motor 3d, by the belts 5| and 52 as illustrated. -Two sets of evaporator coils 3l and 32 are provided at opposite ends of the unit for cooling and dehumidifying the air passed over them-by the fans. Two sets of steam heating coils 33 are also arranged at opposite-ends of the unit for heating the air in winter. With the coils 33 lare associated the steam humidifiezs 3d for humidifying the heated air.

'lihev refrigerant may be supplied by the arrangement illustrateddiagrammatically by Fig. '7, where the refrigerant compressor 35, driven by the electric motor 36, compresses the refrigerant which passes through the condenser coils 3l, expansion valve 3B, through the pipe 39 and through the evaporator coils 3l the pipe lli to the compressor.

The condenser coils 3l may be air cooled or water cooled as by the spray nozzle tl supplied with water by the pump l2 from a. convenient water storage tank. l

While one embodiment of the invention has been disclosed for the purpose of illustration, it should be understood that the invention is not limited to the exact details described, as many departures may be made by those skilled in the art, after having had access to this disclosure.

What is claimed is:

Air distributing means for a passenger vehicle for use with an air conditioning unit extending substantially completely crosswise the interior of said` vehicle from one longitudinal side to the other longitudinal side thereof and-above the passenger space, comprising means forming a discharge outlet opening extending substantially completely crosswise said Vehicle in one end of said unit, a plurality of deectors in said outlet and extending completely crosswise same for deflecting the air from said unit upwardly, a lower substantially horizontal deiiector, and a lowermost deflector extending substantially completely crosswise said outlet and inclined' sharply downwardly, the space between' said horizontal deilector and said lowermost deector being closed so that no air can be projected therethrough.

SAMUEL M. ANDERSON.

car, they all drawing recircu-l to; be returned through 

